//package kafkastudy;
//
///**
// * Created by hp on 2017/9/29.
// */
//import kafka.consumer.ConsumerConfig;
//import kafka.consumer.KafkaStream;
//import kafka.javaapi.consumer.ConsumerConnector;
//
//import java.util.HashMap;
//import java.util.List;
//import java.util.Map;
//import java.util.Properties;
//import java.util.concurrent.ExecutorService;
//import java.util.concurrent.Executors;
//import java.util.concurrent.TimeUnit;
//
//public class ConsumerGroupExample {
//    private final ConsumerConnector consumer;
//    private final String topic;
//    private  ExecutorService executor;
//
//    public ConsumerGroupExample(String a_zookeeper, String a_groupId, String a_topic) {
//        consumer = kafka.consumer.Consumer.createJavaConsumerConnector(
//                createConsumerConfig(a_zookeeper, a_groupId));
//        this.topic = a_topic;
//    }
//
//    public void shutdown() {
//        if (consumer != null) consumer.shutdown();
//        if (executor != null) executor.shutdown();
//        try {
//            if (!executor.awaitTermination(5000, TimeUnit.MILLISECONDS)) {
//                System.out.println("Timed out waiting for consumer threads to shut down, exiting uncleanly");
//            }
//        } catch (InterruptedException e) {
//            System.out.println("Interrupted during shutdown, exiting uncleanly");
//        }
//    }
//
//    public void run(int a_numThreads) {
//        Map<String, Integer> topicCountMap = new HashMap<String, Integer>();
//        topicCountMap.put(topic, new Integer(a_numThreads));
//        Map<String, List<KafkaStream<byte[], byte[]>>> consumerMap = consumer.createMessageStreams(topicCountMap);
//        List<KafkaStream<byte[], byte[]>> streams = consumerMap.get(topic);
//
//        // now launch all the threads
//        //
//        executor = Executors.newFixedThreadPool(a_numThreads);
//
//        // now create an object to consume the messages
//        //
//        int threadNumber = 0;
//        for (final KafkaStream stream : streams) {
//            executor.submit(new ConsumerTest(stream, threadNumber));
//            threadNumber++;
//        }
//    }
//
//    private static ConsumerConfig createConsumerConfig(String a_zookeeper, String a_groupId) {
//        Properties props = new Properties();
//        props.put("zookeeper.connect", a_zookeeper);
//        props.put("group.id", a_groupId);
//        props.put("zookeeper.session.timeout.ms", "400");
//        props.put("zookeeper.sync.time.ms", "200");
//        props.put("auto.commit.interval.ms", "1000");
//
//        return new ConsumerConfig(props);
//    }
//
//    public static void main(String[] args) {
//        String zooKeeper = null;
//        String groupId = null;
//        String topic = null;
//        int threads = 0;
//        if(args == null || args.length ==0) {
//            zooKeeper = "10.1.21.5:2181,10.1.21.6:2181,10.1.21.7:2181/kafka";
//            groupId = "groupTest";
//            topic = "test";
//            threads = 3;
//        } else {
//            zooKeeper = args[0];
//            groupId = args[1];
//            topic = args[2];
//            threads = Integer.parseInt(args[3]);
//        }
//
//        ConsumerGroupExample example = new ConsumerGroupExample(zooKeeper, groupId, topic);
//        example.run(threads);
//
//        try {
//            Thread.sleep(10000);
//        } catch (InterruptedException ie) {
//
//        }
//        example.shutdown();
//    }
//}